Kona Bay Weather Forecast

    • 75
    • 86

    Rain Showers

    • 77
    • 87

    Rain Showers

    • 76
    • 89

    Rain Showers

    • 75
    • 86

    Rain Showers

    • 74
    • 84

    Rain Showers

    • 74
    • 84

    Mostly Sunny

Today 6 Sep Kona

Partly sunny in the Morning, then cloudy with frequent Showers and isolated Thunderstorms in the afternoon. Locally heavy rainfall possible in the afternoon. Highs around 88 near the shore to around 71 near 5000 feet. Light Winds. Chance of rain 90 percent.

Tonight 6 Sep Kona

Cloudy with occasional Showers and isolated Thunderstorms. Locally heavy rainfall possible. Lows 70 to 77 near the shore to around 60 near 5000 feet. Light Winds. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Kona Bay Temperature Statistics

September Temperature

Kailua / Kona, Keahole Airport (7.5 miles)

  • Lowest 1 September, 2026

    75.9 °F

  • Average September

    82.5 °F

  • Highest 4 September, 2026

    89.1 °F

Climate (2021–2026)

Kailua / Kona, Keahole Airport (7.5 miles)

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  • Average Low 2021–2026

    73.4 °F

  • Average 2021–2026

    79.1 °F

  • Average High 2021–2026

    84.7 °F
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